Contractor Sought for County High-Rise Waterproofing in HI

The County of Maui is seeking contractors for the exterior repair and waterproofing of Kalana O Maui County Building located in Wailuku, Hawaii. The nine-story building is located in Maui’s historic district. Built in 1972, it occupies the former site of a firehouse and jail and is listed as a non-contributing property.

The nine-story building is located in Maui’s historic district. Built in 1972, it occupies the former site of a firehouse and jail and is listed as a non-contributing property.

Bids are due Nov. 21.

Scope of Work

This project involves the cleaning and recoating of the interior and exterior of a high-rise building. The project will also involve approximately 8,702 gross square feet of waterproofing applications and 31,138 gross square feet of concrete sealer applications.

The contractor will oversee that all exterior metal-galvanized and metal-ferrous surfaces of the building will be cleaned, followed by a three-coat application. The first coat will consist of a waterborne acrylic and alkyd primer, followed by second and third coats of high-performance acrylic and alkyd gloss enamel. Exterior wood surfaces will receive one coat of latex primer, followed by a second and third coating of an exterior acrylic semi-gloss and a finishing wood stain.

Finally, all exterior concrete, EIFS and cementitious panel surfaces will be coated with a bonding primer, second- and third-coat applications of an acrylic sealer, then finished with two coats of an anti-graffiti system.

When completing the interior of the building, concrete surfaces will be given a latex primer and two coats of an interior acrylic semi-gloss sealant. Interior ferrous and galvanized metal surfaces will be cleaned and degreased, then coated with an acrylic primer, acrylic semi-gloss and an alkyd gloss top-coat. The chosen contractor should ensure all interior gypsum board and wood surfaces are cleaned and coated with a three-coat latex system.

Owner approved brands for the paint include PPG and ICI Devoe Coatings.

I'm not really fond of some of the painting practices recommended here. Applying alkyds over fresh acrylic (aged acrylic would probably do fine, but during the first month or two, it is a lot more solvent sensitive.) Using an alkyd topcoat indoors (it tends to yellow unless there is more UV) and using a "wood stain" on top of 2 layers of paint instead of staining wood directly.